<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>计算属性-姓名案例-插值语法实现</title>
    <script type="text/javascript" src="../js/vue.js"></script>
</head>
<body>

    <div id="root">
        姓：<input type="text" v-model="firstName"><br>
        名：<input type="text" v-model="lastName"><br>
        全名：<span>{{firstName.slice(0,3)}} - {{lastName}}</span>
    </div>

</body>
<script>
    new Vue({
        el:'#root',
        data:{
            firstName:'张',
            lastName:'三'
        }
    })
</script>
</html>